/**
 * Shared markdown transform primitives.
 *
 * These transforms are the common subset used by both WhatsApp and Telegram
 * formatters. Each transport applies additional platform-specific rules on top.
 */
/**
 * Apply the 8 shared block-level and inline markdown transforms.
 *
 * Transform order:
 * 1. Headings → bold uppercase (using placeholder to protect from italic pass)
 * 2. Horizontal rules → em dashes
 * 3. Blockquotes → left bar
 * 4. Checkboxes → unicode checkboxes
 * 5. Unordered lists → bullet points
 * 6. Bold **text** → placeholder-wrapped
 * 7. Italic *text* → _text_
 * 8. Replace bold placeholders with target bold marker
 *
 * @param text - Input markdown text
 * @param boldMarker - The bold delimiter for the target platform ("*" for WhatsApp, "<b>" for Telegram)
 * @param boldEndMarker - The closing bold delimiter ("*" for WhatsApp, "</b>" for Telegram)
 * @param italicMarker - The italic delimiter ("_" for WhatsApp, "<i>" for Telegram)
 * @param italicEndMarker - The closing italic delimiter ("_" for WhatsApp, "</i>" for Telegram)
 */
export declare function applySharedMarkdownTransforms(text: string, boldMarker: string, boldEndMarker: string, italicMarker: string, italicEndMarker: string): string;
/**
 * Strip all markdown formatting, leaving plain conversational text for TTS.
 * TTS engines read asterisks, backticks, etc. literally — this removes them.
 */
export declare function stripMarkdown(text: string): string;
/**
 * WhatsApp markdown formatter.
 * Uses * for bold, _ for italic.
 */
export declare function markdownToWhatsApp(text: string): string;
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